Have hope there is new technology for batteries making them much much much better (Li batteries).

It's all due to this new wonder material called graphene, which are planar sheets of graphite just one atom thick. I wish i could link it, but the two big graphene breakthroughs i saw were both on the discovery channel. The first being some polish scientist making an industrial production method and other researchers incorporating graphene into Li ion cells, making them carry almost an order of magnitude more charge!

Gaming laptops might be realized within 5 years (and i mean ones you can game on not plugged into a wall!)